(2002). Headway: Intermediate- Upper- Advanced. New York: Mc Graw-Hill.
Trích dẫn kiểu ChicagoHeadway: Intermediate- Upper- Advanced. New York: Mc Graw-Hill, 2002.
ציטוט MLAHeadway: Intermediate- Upper- Advanced. New York: Mc Graw-Hill, 2002.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.